@Dandw , your profile says you are 16. Is that right? If so you have time to consider this more.
Assuming you are about that age, this is my advice.
You will see modded 80's and GU's in the magazines and it is tempting to think they are the only decent two vehicles that you can 4wd in. Any 4wd's capabilities will far exceed your capability, for many years to come unless you want to drive mud holes and rocks. In which case allocate even more money as it is tough on vehicles and you can expect serious repair bills and shitty looking dented panels.
Any 4wd you get will cost a lot of money, and if you get a thirsty, old 4wd, it will drain every spare cent you have. You will be permanently broke through Uni or your apprenticeship if you get something that constantly needs petrol and repairs.
Depending on your budget, a later year Pajero or the ones Linuxfan mentioned will give you much more fun, less km, less heartache on the side of the road, and less running costs. And it will be later with more safety specs too.